MD
Mary Dugan — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Essex, New Jersey
Our Model Tree links this Mary Dugan across the 1930 and 1940 US Censuses in Essex, New Jersey (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 10-person household.
Age 5
b. ~1925
Female
Daughter
Born: New Jersey
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Essex, New Jersey |
| Surname | Dugan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Additional Details | |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Irvington Town |
| Est. Birth Year | ~1925 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| James Dugan | Other | — | 48 | ~1882 |
| Margaret Dugan | Daughter | — | 5 | ~1925 |
| George Dugan | Head | — | 47 | ~1883 |
| Margaret Dugan | Spouse | — | 36 | ~1894 |
| Richard Dugan | Son | — | 2 | ~1928 |
| Mary Smith | Other | — | 32 | ~1898 |
| Philip Smith | Other | — | 27 | ~1903 |
| Mary Dugan | Daughter | — | 5 | ~1925 |
| James Dugan | Son | — | 10 | ~1920 |
| George Dugan | Son | — | 7 | ~1923 |
Census Appearances
1930
Essex, New …
Daughter, age 5
Essex, New Jersey · implied b. ~1925 — 10 household members
| Surname | Dugan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Hudson-County, New …
Daughter, age 15
Hudson-County, New Jersey · implied b. ~1925 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duggan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Paterson |
| 1935 Residence (County) | Passaic |
| Income (1939) | 0 |
| Highest Grade | Hs 1 |
| 1935 Residence | New Jersey |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Mary Dugan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Dugan
Daughter · 1930 · age 5 · b. ~1925 · New Jersey
★ You are viewing this record
Sibling
James Dugan
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Dugan
Sibling · 1930 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Dugan
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Dugan
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Essex, New Jersey
Open full size
1930 US Federal Census — Essex, New Jersey
Page Contents
50 people indexed on this census page (ia:1930:newjerseycensus00reel1330:0729)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | John Dwyer | 54 | Head | Waiter | Ireland |
| 52 | Mary Dwyer | 51 | Wife | — | Pennsylvania |
| 53 | Wheaton Ayres | 28 | Son-Law | Manager | Pennsylvania |
| 54 | Catherine Ayres | 23 | Daughter | — | Pennsylvania |
| 55 | Richard Ayres | 1 | Grandson | — | New Jersey |
| 56 | Raymond H. Hill | 26 | Head | Accountant | New Jersey |
| 57 | Edna Hill | 23 | Wife | Operator | New Jersey |
| 58 | Bruce Hill | 5 | Son | — | New Jersey |
| 59 | Joseph Hill | 73 | Father | — | England |
| 60 | Charles Schneider | 27 | Head | Spotter | Czechoslovakia |
| 61 | Lillian Schneider | 25 | Wife | — | Austria |
| 62 | Lillian Schneider | 2 | Daughter | — | New Jersey |
| 63 | Frank Schmidt | 24 | Head | Laborer | Indiana |
| 64 | Thelma Schmidt | 24 | Wife | — | Indiana |
| 65 | Jacob O. Messerschmidt | 39 | Head | Laborer | Germany |
| 66 | Grace Messerschmidt | 34 | Wife | — | Illinois |
| 67 | Dorothy S. Messerschmidt | 11 | Daughter | — | Illinois |
| 68 | Jane R. Messerschmidt | 9 | Daughter | — | Illinois |
| 69 | William Radice | 42 | Head | Machinist | New York |
| 70 | Lenora Radice | 42 | Wife | — | New York |
| 71 | Agnes Radice | 12 | Daughter | — | New York |
| 72 | Lenora Radice | 8 | Daughter | — | New York |
| 73 | George Grill | 36 | Head | Inspector | New York |
| 74 | Edna Grill | 32 | Wife | — | New Jersey |
| 75 | Norman Grill | 9 | Son | — | New Jersey |
| 76 | Frank J. Banz | 30 | Head | Route Salesman | New Jersey |
| 77 | Anna Banz | 35 | Wife | — | New Jersey |
| 78 | Fredrick Banz | 12 | Son | — | New Jersey |
| 79 | Julia Erb | 62 | Mother | — | Germany |
| 80 | Fredrick Erb | 62 | Father | Inspector | Germany |
| 81 | George Dugan | 47 | Head | Laborer | New Jersey |
| 82 | Margaret Dugan | 36 | Wife | — | New Jersey |
| 83 | James Dugan | 10 | Son | — | New Jersey |
| 84 | George Dugan | 7 | Son | — | New Jersey |
| 85 | Margaret Dugan | 5 | Daughter | — | New Jersey |
| 86 | Mary Dugan THIS PERSON | 5 | Daughter | — | New Jersey |
| 87 | Richard Dugan | 2 | Son | — | New Jersey |
| 88 | James Dugan | 48 | Brother | Foreman | New Jersey |
| 89 | Philip Smith | 27 | Bro-Law | Painter | New Jersey |
| 90 | Mary Smith | 32 | Sister-Law | Train Nurse | New Jersey |
| 91 | Conrad Behrens | 34 | Head | Iron Worker | New York |
| 92 | Wilma Behrens | 34 | Wife | — | New York |
| 93 | Albert Behrens | 10 | Son | — | New Jersey |
| 94 | Michel Behrens | 64 | Father | Press Hand | Austria |
| 95 | John De Brove | 35 | Head | Lithographer | New York |
| 96 | Lydia De Brove | 31 | Wife | — | New Jersey |
| 97 | Adolph Hofstetter | 67 | Father-Law | Salesman | New York |
| 98 | Charles West | 39 | Head | Window Dresser | New Jersey |
| 99 | Lora West | 36 | Wife | — | New Jersey |
| 100 | Nellie Ross | 26 | Lodger | Stenographer | New Jersey |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)